US6793203B2 - Hoisting gear - Google Patents

Hoisting gear Download PDF

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Publication number
US6793203B2
US6793203B2 US10/220,367 US22036702A US6793203B2 US 6793203 B2 US6793203 B2 US 6793203B2 US 22036702 A US22036702 A US 22036702A US 6793203 B2 US6793203 B2 US 6793203B2
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US
United States
Prior art keywords
drum
rotary driving
shaft
lifting gear
change
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime, expires
Application number
US10/220,367
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English (en)
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US20030111653A1 (en
Inventor
Peter Heinrichs
Albrecht Heinrichs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mhwirth GmbH
Original Assignee
Wirth Maschinen und Bohrgeraete Fabrik GmbH
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Application filed by Wirth Maschinen und Bohrgeraete Fabrik GmbH filed Critical Wirth Maschinen und Bohrgeraete Fabrik GmbH
Assigned to WIRTH MASCHINEN - UND BOHRGERATEFABRIK GMBH reassignment WIRTH MASCHINEN - UND BOHRGERATEFABRIK GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HEINRICHS, ALBRECHT, HEINRICHS, PETER
Publication of US20030111653A1 publication Critical patent/US20030111653A1/en
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Assigned to AKER WIRTH GMBH reassignment AKER WIRTH GMBH CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: WIRTH MASCHINEN- UND BOHRGERATEFABRIK GMBH
Adjusted expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/008—Winding units, specially adapted for drilling operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/14—Power transmissions between power sources and drums or barrels
    • B66D1/22—Planetary or differential gearings, i.e. with planet gears having movable axes of rotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/54—Safety gear
    • B66D1/58—Safety gear responsive to excess of load
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/12—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect
    • B66D5/14—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect embodying discs

Definitions

  • the invention relates to lifting gear for raising and lowering a load.
  • Such lifting gear serves for raising and lowering a load, in particular drilling equipment, for example from a platform into a bore hole or onto the seabed. It comprises flexible tension means, of which one end is attached to the drilling equipment. The other end of the tension means is attached to a rotatably mounted winding drum by which the tension means can be wound up and unwound.
  • At least one rotary driving device is provided for driving the drum.
  • the device usually incorporates a direct current motor.
  • a direct current motor In order to be able to drive the drum over a relatively wide speed range with almost constant high power, there is connected to the direct current motor a change-speed gearbox, of which the input shaft is coupled to the motor and the output shaft to the drum.
  • lifting gear including two drive units each comprising a direct current electric motor with associated change-speed gearbox, in which the gearbox output shafts each carry a respective toothed gear pinion which engages a gearwheel secured on the shaft of the drum.
  • the two rotary driving devices are mounted side by side on an extension of the axis of the drum at one of the end faces of the drum in such a way that the engagements of the two pinions with the gearwheel mounted on the shaft of the drum are offset through 180° with respect to the axis of the drum.
  • On the far side at the other end face of the drum are provided, one following the other looking along the axis of the shaft, a disc brake and an eddy-current brake secured to the shaft of the drum.
  • the invention is therefore based on solving the problem of providing lifting gear with which four-quadrant operation is possible but which uses direct current and of which the structural length is reduced.
  • At least one rotary drive device is arranged alongside the drum in relation to the axis of rotation of the drum in such a way that the drum and the rotary drive device partially overlap one another in a projection perpendicular to the axis of rotation of the drum. Due to this construction, the structural strength of the lifting gear is significantly reduced. The length of the lifting gear is accordingly determined substantially by the drum and the assemblies which are connected ahead of it and following it in the direction of the axis of the drum.
  • the driving shaft of the driving motor and the input and output shafts of the gearbox are arranged to lie on a common straight line. Any change of direction of the driving torque which would involve an increased outlay and also power loss is thereby avoided.
  • the drum is preferably secured to a rotatably mounted drum shaft to rotate with it.
  • the drum shaft is then preferably connected to the output side of a gearbox unit of which the input side is coupled to the output shaft of the change-speed gearbox.
  • the gearbox unit is preferably a toothed gear drive which has an idler pinion between output shaft of the change-speed gearbox and the shaft of the drum to bridge the gap between them.
  • drum shaft is coupled at one end to a mechanically acting braking device and at the other end to an electrically acting braking device, then in case of need a high braking torque can be exerted on the drum by operating both braking devices simultaneously without this leading to torsion forces being applied to only one end of the drum shaft, as would be the case if only one end of the drum shaft were coupled to braking devices.
  • the mechanically acting braking device is preferably a disc brake and the electromagnetically acting braking device is an eddy-current brake.
  • the lifting gear according to the invention preferably has a second rotary driving device with a rotary driving motor and change-speed gearbox.
  • the drive shaft of the rotary driving motor and the input and output shafts of the change-speed gearbox of the second rotary driving device are arranged to lie on a common straight line which—and this is particularly preferred—coincides with the axis of rotation of the output shaft of the change-speed gearbox of the first rotary driving arrangement.
  • the output shafts are preferably both coupled directly to the input side of the gearbox unit, which can be structurally modified so that they are both operatively connected to the same gearbox input pinion.
  • the change-speed gearboxes are preferably equipped with a safety device which, in the event of a maximum permissible torque at the input shaft of the gearbox being exceeded, automatically change gear to the ratio having the greatest ratio of the speed of the input shaft to the speed of the output shaft.
  • FIG. 1 shows a side view of one embodiment of lifting gear according to the invention (view A in FIG. 2 );
  • FIG. 2 shows the same lifting gear as in FIG. 1, looking from above (view B in FIG. 1) and
  • FIG. 3 is a perspective view of the same lifting gear.
  • the lifting gear indicated as a whole at 100 comprises a frame 1 of rectangular outline, made up of I-section steel beams 2 welded together. Bolted to the upper horizontal surfaces 3 of the beams 2 are the components of the lifting gear described below.
  • the lifting gear 100 For raising and lowering drilling equipment the lifting gear 100 includes flexible tension means 4 in the form of a steel rope which can be wound up on, and unwound from, a drum 5 .
  • the drum 5 is secured on a drum shaft 6 , of which the axis S runs parallel to the longer sides 7 of the frame 1 . It is carried in bearing blocks 8 , 9 , which are arranged on each side of the two end faces 10 , 11 of the drum 5 .
  • the left-hand end of the drum shaft 6 as viewed in the drawing is secured to the disc 12 of a disc brake assembly 13 , which has two brake calipers 14 , 15 offset by 180° about the axis S in the direction of rotation.
  • the drum shaft 6 On the other side of the other face 11 the drum shaft 6 is connected to the output side 16 of a gearbox unit 17 , to be described in detail later, and an eddy-current brake 18 which follows it in the direction of the axis S.
  • the latter likewise serves to brake the rate of unwinding of the drum 5 . Its use is preferred to that of the disc brake assembly as the application of the braking energy takes place without any wear and without any noise annoyance resulting from mechanical contact.
  • each of the rotary driving devices 19 , 20 has a direct current electric motor 21 , 22 , of which the output shaft is secured respectively to the input shaft 23 , 24 of a change-speed gearbox 25 , 26 .
  • the change-speed gearboxes 25 , 26 take the form of those of a kind known for use in lifting gear and they will not be described within the framework of the present description.
  • the rotary driving devices 19 , 20 are arranged spatially in such a way that the output shafts 27 , 28 of the change-speed gearboxes 25 , 26 point towards one another and the axes of rotation T, T′ of the output shafts 27 , 28 lie on a common straight line.
  • Both output shafts 27 , 28 are connected to the input side 29 of the gearbox unit 17 and act on a gearwheel, not visible in the drawing, which is connected to the drum shaft 6 through an idler pinion 30 to a gearwheel, likewise not shown, provided at the output side 16 of the gearbox unit 17 .
  • the gearbox assembly 17 thus serves to transmit torques between the output shafts 27 , 28 of the change-speed gearboxes 25 , 26 and the drum shaft 6 .
  • the rotary driving devices 19 , 20 drive the drum shaft 6 , and in the case of unwinding of the flexible tension means 4 from the drum 5 the necessary braking of the drum 5 can likewise take place through the direct current motors 21 , 22 , which then behave as generators. As the kinetic energy of the rotating drum is thereby converted into electrical energy, it can be recovered in this way, if desired, by feeding it back.
  • the significant advantage of coupling the output shafts 27 , 28 of the gearboxes 25 , 26 to the drum shaft 6 through the gearbox units 17 containing toothed pinions is the fact that the lifting gear according to the invention can operate in the so-called four-quadrant mode. What is meant by four-quadrant operation is that both in lifting and also in lowering of the load on the flexible tension means 4 the drum 5 can be both accelerated and also braked using the rotary driving devices 19 , 20 .
  • the change-speed gearboxes 25 , 26 are equipped with a safety clutch, not visible in the drawing, which in the event of overloading of the respective driving direct current motor 21 , 22 automatically selects the lowest gear ratio between the input shafts 23 , 24 and the output shafts 27 , 28 , in order to minimise the torque exerted by the electric motors 21 , 22 in this condition.
  • the safety clutch is designed so that in this “first” gear a spring-force-induced action prevents release of the clutch independently of the hydraulic pressure present by which the clutch is actuated, and thereby the transmission of torque from the input shafts 23 , 24 to the output shafts 27 , 28 is maintained.
  • the lifting gear according to the invention there is preferably incorporated a follow-up device, not shown in the drawing, which is designed to raise and lower the drilling equipment even during the drilling operation and which the sets the engaging force of the drilling equipment on the floor of the bore hole to a desired value.
  • the follow-up device can be operated in the three different ways listed below:
  • the lifting gear according to the invention is furthermore equipped with a double filter installation, not visible in the drawing, by which the hydraulic oil needed for operation of the hydraulically driven components of the lifting gear, for example the disc brake assembly 13 and the change-speed gearboxes 25 , 26 , is effectively filtered.
  • the two filters of this double filter installation are introduced alternately and independently of one another into flow branches capable of being switched into the hydraulic circuit. In this way the result is that—as soon as the filtering capacity is exhausted in one of the two filters—a change over to the other filter can be effected without interrupting operations.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Gear Transmission (AREA)
  • Structure Of Transmissions (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Noodles (AREA)
  • Advancing Webs (AREA)
  • Blinds (AREA)
  • Window Of Vehicle (AREA)
  • Valve Device For Special Equipments (AREA)
  • Magnetic Heads (AREA)
  • Massaging Devices (AREA)
US10/220,367 2000-02-28 2001-02-14 Hoisting gear Expired - Lifetime US6793203B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE20003513.4 2000-02-28
DE20003513U 2000-02-28
DE20003513U DE20003513U1 (de) 2000-02-28 2000-02-28 Hebewerk
PCT/EP2001/001613 WO2001064573A2 (de) 2000-02-28 2001-02-14 Hebewerk

Publications (2)

Publication Number Publication Date
US20030111653A1 US20030111653A1 (en) 2003-06-19
US6793203B2 true US6793203B2 (en) 2004-09-21

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Family Applications (1)

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US10/220,367 Expired - Lifetime US6793203B2 (en) 2000-02-28 2001-02-14 Hoisting gear

Country Status (9)

Country Link
US (1) US6793203B2 (ru)
EP (1) EP1259455B1 (ru)
CN (1) CN1222465C (ru)
AT (1) ATE290994T1 (ru)
DE (2) DE20003513U1 (ru)
NO (1) NO321816B1 (ru)
PT (1) PT1259455E (ru)
RU (1) RU2254287C2 (ru)
WO (1) WO2001064573A2 (ru)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070029533A1 (en) * 2005-06-23 2007-02-08 Klaus-Jurgen Winter Support frame of a hoisting machine
US20090084558A1 (en) * 2007-09-28 2009-04-02 Robert Lewis Bloom Electrically powered well servicing rigs
WO2010012455A1 (en) * 2008-07-30 2010-02-04 Drillmec S.P.A. Draw-works for the maneuvering of drilling devices
US20100242824A1 (en) * 2007-11-09 2010-09-30 Selden Mast Ab Device at a Line Winch
US20120256145A1 (en) * 2009-11-21 2012-10-11 Demag Cranes & Components Gmbh Lifting apparatus, especially cable traction mechanism, comprising connecting possibilities
US20130313495A1 (en) * 2010-10-11 2013-11-28 Pontos Capstan comprising means for assessing the tension of a line wound around it and means for the automatic selection of at least one speed as a function of said tension.
US20140048639A1 (en) * 2009-03-10 2014-02-20 Holmes Solutions Limited Line dispensing device with eddy current braking for use with climbing and evacuation
US8763992B2 (en) 2009-11-21 2014-07-01 Demag Cranes & Components Gmbh Base frame for a lifting apparatus having removable support members
US8789812B2 (en) 2009-11-21 2014-07-29 Demag Cranes & Components Gmbh Base frame for a cable winch having removable support members
US20150014097A1 (en) * 2013-07-12 2015-01-15 Jui-Lon Chang Descending Escape Equipment
US8985555B2 (en) 2009-03-02 2015-03-24 General Electric Company Drive assembly and apparatus for hoist
US20170314342A1 (en) * 2016-04-28 2017-11-02 Gerald Lesko Cable drawworks for a drilling rig
US10020720B2 (en) 2014-08-18 2018-07-10 Eddy Current Limited Partnership Latching devices
US10035421B2 (en) 2014-08-20 2018-07-31 Hi Tech Llc Eddy current braking device for linear systems
US10110089B2 (en) 2014-08-18 2018-10-23 Eddy Current Limited Partnership Tuning of a kinematic relationship between members
US10300397B2 (en) 2013-12-16 2019-05-28 Eddy Current Limited Partnership Assembly to control or govern relative speed of movement between parts
US10464791B2 (en) * 2017-03-06 2019-11-05 Cameron International Corporation Drawworks systems and methods
US10498210B2 (en) 2014-08-18 2019-12-03 Eddy Current Limited Partnership Tuning of a kinematic relationship between members
US10508715B2 (en) 2017-03-06 2019-12-17 Cameron International Corporation Motor assembly for drawworks systems and methods
US10693360B2 (en) 2014-12-04 2020-06-23 Eddy Current Limited Partnership Transmissions incorporating eddy current braking
US10697254B2 (en) 2018-04-10 2020-06-30 Cameron International Corporation Drawworks system with variable frequency drive
US10774887B2 (en) 2014-12-04 2020-09-15 Eddy Current Limited Partnership Latch activation between members
US10940339B2 (en) 2014-12-04 2021-03-09 Eddy Current Limited Partnership Energy absorbing apparatus
US10953848B2 (en) 2015-12-18 2021-03-23 Eddy Current Limited Partnership Variable behavior control mechanism for a motive system
US11050336B2 (en) 2014-12-04 2021-06-29 Eddy Current Limited Partnership Methods of altering eddy current interactions
US11114930B2 (en) 2014-12-04 2021-09-07 Eddy Current Limited Partnership Eddy current brake configurations
US11191191B2 (en) 2017-12-11 2021-11-30 Schlumberger Technology Corporation Air cooled variable-frequency drive

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10208370A1 (de) * 2002-02-27 2003-09-11 Wirth Co Kg Masch Bohr Hebewerk
DE10348666A1 (de) * 2003-10-15 2005-05-19 Wirth Maschinen- und Bohrgeräte-Fabrik GmbH Hebewerk
DE102008030124A1 (de) * 2008-06-27 2009-12-31 Bentec Gmbh Drilling & Oilfield Systems Getriebeloses Hebewerk
DE102011052183B4 (de) 2011-07-27 2018-02-22 Mhwirth Gmbh Hebewerk
CN103183293B (zh) * 2013-04-07 2015-02-18 中国地质大学（武汉） 重钩自由下落绳索取芯排绳绞车
NO345631B1 (en) * 2016-02-26 2021-05-18 Castor Drilling Solution As A compensator-tensioner system
CN107434216B (zh) * 2017-04-11 2018-11-20 江苏源清环保科技有限公司 一种牢固的电力设备
CN107437757B (zh) * 2017-04-11 2019-01-18 扬州嘉吉机械有限公司 一种电力设备
US20190309583A1 (en) * 2018-04-10 2019-10-10 Cameron International Corporation Direct Drive Systems
US11472681B2 (en) * 2020-07-21 2022-10-18 Schlumberger Technology Corporation Direct drive drawworks

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE696076C (de) 1939-01-15 1940-09-10 Maschf Augsburg Nuernberg Ag Windenantrieb
DE739553C (de) 1937-12-09 1943-09-29 Maschf Augsburg Nuernberg Ag Hubwerk
GB876647A (en) 1959-10-26 1961-09-06 Schwermaschb Kirow Veb Improvements in or relating to load-lifting hoists
US3608864A (en) * 1969-03-05 1971-09-28 Skagit Corp Constant-tension winch
US4434971A (en) 1981-02-11 1984-03-06 Armco Inc. Drilling rig drawworks hook load overspeed preventing system
US4842250A (en) * 1987-09-03 1989-06-27 W-N Apache Corporation Line reeving system for earth drilling machine
US5039028A (en) * 1986-09-26 1991-08-13 Akerstroms Bjorbo Ab Overload protection
US5141085A (en) * 1990-11-05 1992-08-25 Harnischfeger Corporation Hoist load brake
US5167400A (en) * 1989-06-23 1992-12-01 Plateformes Et Structures Oceaniques Has invented certain and useful improvements in control device for lifting winches, in particular for drilling rigs
US5368279A (en) * 1992-08-10 1994-11-29 Imi Barient, Inc. Automatic load responsive winch

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4627519A (en) * 1984-03-29 1986-12-09 Armco Inc. Hydraulic disk brake having a braking torque-to-hydraulic force converter
DE3441699A1 (de) * 1984-11-15 1986-05-15 Thyssen Industrie Ag, 4300 Essen Windenantrieb, insbesondere fuer off-shore-stationen

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE739553C (de) 1937-12-09 1943-09-29 Maschf Augsburg Nuernberg Ag Hubwerk
DE696076C (de) 1939-01-15 1940-09-10 Maschf Augsburg Nuernberg Ag Windenantrieb
GB876647A (en) 1959-10-26 1961-09-06 Schwermaschb Kirow Veb Improvements in or relating to load-lifting hoists
US3608864A (en) * 1969-03-05 1971-09-28 Skagit Corp Constant-tension winch
US4434971A (en) 1981-02-11 1984-03-06 Armco Inc. Drilling rig drawworks hook load overspeed preventing system
US5039028A (en) * 1986-09-26 1991-08-13 Akerstroms Bjorbo Ab Overload protection
US4842250A (en) * 1987-09-03 1989-06-27 W-N Apache Corporation Line reeving system for earth drilling machine
US5167400A (en) * 1989-06-23 1992-12-01 Plateformes Et Structures Oceaniques Has invented certain and useful improvements in control device for lifting winches, in particular for drilling rigs
US5141085A (en) * 1990-11-05 1992-08-25 Harnischfeger Corporation Hoist load brake
US5368279A (en) * 1992-08-10 1994-11-29 Imi Barient, Inc. Automatic load responsive winch

Cited By (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7377486B2 (en) * 2005-06-23 2008-05-27 Demag Cranes & Components Gmbh Support frame of a hoisting machine
US20070029533A1 (en) * 2005-06-23 2007-02-08 Klaus-Jurgen Winter Support frame of a hoisting machine
US20090084558A1 (en) * 2007-09-28 2009-04-02 Robert Lewis Bloom Electrically powered well servicing rigs
US20100242824A1 (en) * 2007-11-09 2010-09-30 Selden Mast Ab Device at a Line Winch
US8820719B2 (en) 2008-07-30 2014-09-02 Drillmec S.P.A. Draw-works for maneuvering of drilling devices
WO2010012455A1 (en) * 2008-07-30 2010-02-04 Drillmec S.P.A. Draw-works for the maneuvering of drilling devices
CN102112696A (zh) * 2008-07-30 2011-06-29 吉尔迈科股份公司 用于操纵钻井装置的绞车
US20110174540A1 (en) * 2008-07-30 2011-07-21 DRILLMEC S. p. A. Draw-works for maneuvering of drilling devices
CN102112696B (zh) * 2008-07-30 2014-11-19 吉尔迈科股份公司 用于操纵钻井装置的绞车
US8985555B2 (en) 2009-03-02 2015-03-24 General Electric Company Drive assembly and apparatus for hoist
US11123580B2 (en) 2009-03-10 2021-09-21 Eddy Current Limited Partnership Line dispensing device with Eddy current braking for use with climbing and evacuation
US9016435B2 (en) * 2009-03-10 2015-04-28 Eddy Current Limited Partnership Line dispensing device with eddy current braking for use with climbing and evacuation
US10065054B2 (en) 2009-03-10 2018-09-04 Eddy Current Limited Partnership Braking mechanisms
US9962588B2 (en) 2009-03-10 2018-05-08 Eddy Current Limited Partnership Line dispensing device with eddy current braking for use with climbing and evacuation
US20140048639A1 (en) * 2009-03-10 2014-02-20 Holmes Solutions Limited Line dispensing device with eddy current braking for use with climbing and evacuation
US10518115B2 (en) 2009-03-10 2019-12-31 Eddy Current Limited Partnership Braking mechanisms
US8789813B2 (en) * 2009-11-21 2014-07-29 Demag Cranes & Components Gmbh Lifting apparatus, especially cable traction mechanism, comprising connecting possibilities
US8763992B2 (en) 2009-11-21 2014-07-01 Demag Cranes & Components Gmbh Base frame for a lifting apparatus having removable support members
US8789812B2 (en) 2009-11-21 2014-07-29 Demag Cranes & Components Gmbh Base frame for a cable winch having removable support members
US20120256145A1 (en) * 2009-11-21 2012-10-11 Demag Cranes & Components Gmbh Lifting apparatus, especially cable traction mechanism, comprising connecting possibilities
US20130313495A1 (en) * 2010-10-11 2013-11-28 Pontos Capstan comprising means for assessing the tension of a line wound around it and means for the automatic selection of at least one speed as a function of said tension.
US20150014097A1 (en) * 2013-07-12 2015-01-15 Jui-Lon Chang Descending Escape Equipment
US11266917B2 (en) 2013-12-16 2022-03-08 Eddy Current Limited Partnership Assembly to control or govern relative speed of movement between parts
US10603596B2 (en) 2013-12-16 2020-03-31 Eddy Current Limited Partnership Assembly to control or govern relative speed of movement between parts
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US11628373B2 (en) 2013-12-16 2023-04-18 Eddy Current Limited Partnership Assembly to control or govern relative speed of movement between parts
US11735992B2 (en) 2014-08-18 2023-08-22 Eddy Current Limited Partnership Tuning of a kinematic relationship between members
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US10498210B2 (en) 2014-08-18 2019-12-03 Eddy Current Limited Partnership Tuning of a kinematic relationship between members
US10110089B2 (en) 2014-08-18 2018-10-23 Eddy Current Limited Partnership Tuning of a kinematic relationship between members
US10594200B2 (en) 2014-08-18 2020-03-17 Eddy Current Limited Partnership Latching devices
US11632016B2 (en) 2014-08-18 2023-04-18 Eddy Current Limited Partnership Tuning of a kinematic relationship between members
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US10873242B2 (en) 2014-08-18 2020-12-22 Eddy Current Limited Partnership Tuning of a kinematic relationship between members
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US10035421B2 (en) 2014-08-20 2018-07-31 Hi Tech Llc Eddy current braking device for linear systems
US10940339B2 (en) 2014-12-04 2021-03-09 Eddy Current Limited Partnership Energy absorbing apparatus
US11777391B2 (en) 2014-12-04 2023-10-03 Eddy Current Limited Partnership Methods of altering eddy current interactions
US11499596B2 (en) 2014-12-04 2022-11-15 Eddy Current Limited Partnership Latch activation between members
US12009721B2 (en) 2014-12-04 2024-06-11 Eddy Current Limited Partnership Eddy current brake configurations
US11992713B2 (en) 2014-12-04 2024-05-28 Eddy Current Limited Partnership Energy absorbing apparatus
US10774887B2 (en) 2014-12-04 2020-09-15 Eddy Current Limited Partnership Latch activation between members
US11050336B2 (en) 2014-12-04 2021-06-29 Eddy Current Limited Partnership Methods of altering eddy current interactions
US11009089B2 (en) 2014-12-04 2021-05-18 Eddy Current Limited Partnership Latch activation between members
US11114930B2 (en) 2014-12-04 2021-09-07 Eddy Current Limited Partnership Eddy current brake configurations
US10693360B2 (en) 2014-12-04 2020-06-23 Eddy Current Limited Partnership Transmissions incorporating eddy current braking
US11878651B2 (en) 2015-12-18 2024-01-23 Eddy Current Limited Partnership Variable behavior control mechanism for a motive system
US10953848B2 (en) 2015-12-18 2021-03-23 Eddy Current Limited Partnership Variable behavior control mechanism for a motive system
US20170314342A1 (en) * 2016-04-28 2017-11-02 Gerald Lesko Cable drawworks for a drilling rig
US10464791B2 (en) * 2017-03-06 2019-11-05 Cameron International Corporation Drawworks systems and methods
US10508715B2 (en) 2017-03-06 2019-12-17 Cameron International Corporation Motor assembly for drawworks systems and methods
US11191191B2 (en) 2017-12-11 2021-11-30 Schlumberger Technology Corporation Air cooled variable-frequency drive
US10697254B2 (en) 2018-04-10 2020-06-30 Cameron International Corporation Drawworks system with variable frequency drive

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NO20024083L (no) 2002-10-22
DE50105617D1 (de) 2005-04-21
CN1222465C (zh) 2005-10-12
PT1259455E (pt) 2005-08-31
US20030111653A1 (en) 2003-06-19
EP1259455B1 (de) 2005-03-16
WO2001064573A3 (de) 2002-07-18
NO20024083D0 (no) 2002-08-27
CN1406203A (zh) 2003-03-26
RU2254287C2 (ru) 2005-06-20
DE20003513U1 (de) 2001-07-26
WO2001064573A2 (de) 2001-09-07
RU2002125883A (ru) 2004-02-10
ATE290994T1 (de) 2005-04-15
EP1259455A2 (de) 2002-11-27
NO321816B1 (no) 2006-07-10

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